High MSRC-CVE-2025-59284 1 CVE

Windows NTLM Spoofing Vulnerability

Published Oct 14, 2025 · Updated Oct 14, 2025

Vendor: Microsoft

Summary

Impact: Spoofing. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
10.0.22621.6060 — https://support.microsoft.com/help/5066793
10.0.26100.6899 — https://support.microsoft.com/help/5066835

Vulnerabilities 1

Low 3.3

CVE-2025-59284 Public exploit

Windows NTLM Spoofing Vulnerability

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing locally.

Microsoft Windows Server 2025 Windows Server 2025 (Server Core installation) Windows 11 Version 24H2 Windows

Oct 14, 2025

Revision history

2025-10-14 #1
Information published.

References

CVE-2025-59284 Windows NTLM Spoofing Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59284
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss